baber/WOPTO huggingface dataset:
Patent GB-571554-A (GB)
Title: Improvements in or relating to valves
IPC: F01L3/08
Filed: 1944-05-08
Abstract: 571,554. Cylinders. MALLORY METALLURGICAL PRODUCTS, Ltd. May 8, 1944, No. 8652. Convention date, May 8, 1943. [Class 7 (ii)] [Also in Group XXIX] A valve guide assembly for removing the carbon from the portion of the valve stem which enters the guide, consists of a tubular metal guide 14 having an internal annular groove 22 and a plurality of longitudinal slots 24 extending back from the end to divide the, grooved. portion into a plurality of individual resilient legs 26, and a scraper ring 15 preferably of a hard refractory material having an external annular flange 19 received in groove 22, whereby the guide and scraper ring are looked together. The scraper ring has a tapered conical face 18 to produce springing of the resilient legs 26 during assembly. The re fractory material used is a mixture of molybdunum (55-65 per cent) and silver (45-35 per cent). Although other materials, viz. tungsten or the carbides of tungsten, molybdenum, titanium and tantalum in combination with silver are also said to be suitable.
Patent GB-708987-A (GB)
Title: Improvements in or relating to tables
IPC: A47B35/00
Filed: 1952-04-05
Abstract: 708,987. Tables with ironing-boards. FREEDLAND, M. M., and FREEDLAND, J. April 7,1953 [April 5, 1952], No. 8765/52. Class 52(3) A table, having a hinged leaf swingable from a pendant position to an outwardly projecting position, for use as an extension, and to a position in which it overlaps the part of the table to which it is hinged, has an ironing-board provided on the side of the leaf which is uppermost when the leaf is in overlapping position. The supporting portion 2 of a gate-leg table forms a cabinet and has leaves 4, 5 hinged to the edges of the top 3, one surface of each leaf being stained and polished and forming extensions of the table when raised to a horizontal position. A slide 8 of an ironing-board 7 runs in guides 9 secured to the side of the leaf 4 which is uppermost when the leaf is folded over the top 3 and the board may be projected beyond the edge of the leaf to facilitate the ironing of skirts &c. and to uncover an ironstand 17. The reverse surface of the leaf 5 is suited to kitchen use and may be of unstained wood or have an enamelled metal or other top. In a modification, the ironing-board is foldable intermediate its length and an iron-stand is provided adjacent the board.
Patent GB-1044541-A (GB)
Title: Improvements in or relating to weigh-feed mechanisms
Inventor: WHITELEY GWYN
IPC: G01G13/00
Filed: 1963-03-06
Abstract: 1,044,541. Variable ratio friction gears. CLIFFE & CO. Ltd. June 8, 1964 [March 6, 1963], No. 8869/63. Heading F2D. [Also in Divisions G1 and G3] A variable speed unit connected to a processing machine and arranged to operate control valves in a circuit which controls the rate of feeding of the machine comprises an input shaft 104 driven by the processing machine and an output shaft 106 having cams which operate the control devices, rotation of the input shaft being transferred to the output shaft by an adjustable roller 134 bearing on discs 112, 114 mounted on the shafts 104, 106, and the ratio of the speed of rotation being adjustable by manually adjusting the position of the roller 134 between the shafts 104, 106.
Patent GB-811352-A (GB)
Title: Improvements in or relating to isolating transformers
Inventor: GUNN JOHN BATTISCOMBE
IPC: H01F19/08
Filed: 1955-03-28
Abstract: 811,352. Transformers. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 13, 1956 [March 28, 1955], No. 8947/55. Class 38 (2). [Also in Group XL (c)] A transformer for supplying heater current to a valve whose cathode is pulsed (or supplied with high frequency voltage) from transmission lines comprises a magnetic core 13 which is interlinked by at least one of two sections 2, 3 of coaxial cable type transmission line. As shown, the central conductors of the cables form parallel paths for the supply of pulses to the cathode. The outer sheaths are connected in series and fed with a low-frequency supply through leads 11, 12 so forming the primary winding of the transformer. The secondary winding is formed by the central conductors which are also connected in series. The sheaths are effectively earthed for pulses by capacitors 9A. In a modification a separate primary winding is wound on the core.
Patent GB-905358-A (GB)
Title: Safety helmet
Inventor: ZBIKOWSKI TED
IPC: A42B3/10
Filed: 1961-03-13
Abstract: 905,358. Protective helmets. BUEGEHEISEN CO., JOSEPH. March 13, 1961, No. 9070/61. Class 63. A protective helmet comprises a thin-walled rigid shell, a lining of thicker resilient material in face to face contact with the shell and headsupporting straps each of which is secured at its outer end to the lower edge of the lining, some only being also secured to the lining at a point nearer the top of the helmet, the latter straps, when a load having a downward component of motion is applied to the helmet, applying a force to the lining from its lower edge towards its top so that the lining is compressed longitudinally to resist the force, whilst the straps attached only to the lower edge of the lining urge that edge inwardly to grip the head. As shown, a shell 10 of material such as glass fibre reinforced plastic resin has a bead 12 of, e.g., rubber, on which rests a resilient lining 15 formed in two parts 16 only secured to the shell, if at all, at the top of the helmet. A pad 40 may be secured to the lining. Straps 18 are sewn or adhesively secured to the edge 17 of the lining at 19 and straps 21 are secured at 19 and at 23, Fig. 3. The straps 18 and 21 may be integral and are adjustably gathered together by a cord 25. A head-band 30 is formed of two members 31 adjustably secured to each other by cords 36 and each having a flange 32 turned under the edge of the lining and secured to its outer side at 33. The straps 21 pass freely through loops 38 on the head-band. When a downward force is applied to the helmet, the straps 18 pull the edge 17 inwardly and cause the lining to grip the head whilst under the pull of the straps 21, the lining is compressed longitudinally to absorb part of the force. The head-band also grips the head translating the force into uniform circumferential pressure.
Patent GB-871929-A (GB)
Title: Starting and operating device for electric discharge lamps
IPC: H05B41/04
Filed: 1958-03-21
Abstract: 871,929. Supply systems for discharge lamps. PATENT - TREUHAND - GESSELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN. March 21, 1958 [March 22, 1957; May 10, 1957; June 25, 1957; June 26, 1957], No. 9135/58. Class 38 (4). The preheating current of a discharge lamp having filamentary electrodes, or the starting current of a high-pressure vapour discharge lamp, supplied from an A.C. source through a ballast choke, is temporarily increased by a rectifier in series with the starting circuit to cause saturation of the choke, the rectifier being shunted by an automatic circuit element which initially allows the rectifier to function normally, but which, after a time sufficient for running conditions to have been established, renders the rectifier ineffective and allows the choke to assume its normal inductance. The automatic circuit element may be (1) a thermal switch having a heater winding carrying the lamp current and normally open contacts in shunt with the rectifier, (2) a reversely-poled rectifier which becomes conductive after a period of time, or (3) a resistor having a negative temperature coefficient, such as one of uranium dioxide, or of a magnesium-titanium compound. Where a glow switch starter and other gear are normally housed in a plug-in container, the rectifier and its automatic shunt may also be housed in that container. The glow switch starter is preferably of the asymmetrical kind having tungsten contacts. In the arrangement shown in Fig. 1, a discharge lamp 1, having filamentary electrodes 3, 4 and supplied through a choke 5, is provided with a starting circuit comprising the normally closed contacts 14 of a thermal switch 14, 16 in series with a rectifier 15 shunted by a resistor 17 having a negative temperature coefficient. In a modified arrangement, Fig. 2 (not shown), the thermal starting switch is replaced by a glow switch. Fig. 3 shows a rectifier 19, shunted by a negative temperature coefficient resistor 21, connected in series with a high-pressure vapour discharge lamp 18 and its ballast choke 20, for temporarily increasing the initial current passed by the lamp.
Patent GB-227681-A (GB)
Title: Improvements in and relating to rotary well drilling machines
IPC: E21B3/04
Filed: 1924-04-10
Abstract: 227,681. Union Tool Co., (Assignees of Zerbe, L. E.). March 3, 1924, [Convention date]. Screws, screwing-up and unscrewing.-A rotary well drilling machine adapted also for use in screwing together or unscrewing sections of drill pipe or casings comprises a base plate carrying a rotary table, movable means within the table adapted to be locked either to the table or to the base, and means within the movable means adapted to engage a section of pipe &c. The table 18 is held on ball &c. bearings 19 by a ring 55 engaging over an annular flange 20, and has shrunk thereon a bevel gear ring 17 meshing with a bevel pinion 16 on the shaft 14; the gearing 17 has an outer groove 67 to deflect mud &c. Within the table is a sleeve 26 adapted in an upper position to be locked to the table by the engagement of lugs 27 thereon with recessed lugs 29 within the table, while when in a lower position lugs 31 on the sleeve engage between lugs 32 on the base plate to lock the sleeve against rotation while permitting rotation of the table. A split tapered bushing 35 is placed within the sleeve and has a lug and recess engagement therewith to prevent relative rotation. When used for screwing together, or unscrewing, pipe &c. sections, the sleeve 26 may be locked to the base and the lower pipe section held therein by wedge slips 37, a post 49 and wrench 50 assisting to hold the pipe section against rotation if desired, and the upper pipe section is then rotated by the table 18 acting through a post 46 and wrench 47; alternatively, the sleeve 26 may be locked to the table and driven thereby to rotate the lower pipe section while the upper pipe section is held against rotation as by engagement of the wrench 47 with the post 46 which is then held in a hole provided in the base plate. The upper flange of the sleeve 26 is provided with lifting hooks to facilitate manipulation thereof. A lubricant holder on the base communicates with the bearing 19 and the table 18 and sleeve 26 are provided with alignment indications.
Patent GB-377621-A (GB)
Title: An improved method for the production of articles of jewellery or the like
IPC: A44C17/04
Filed: 1932-03-30
Abstract: 377,621. Moulding jewellery &c. SWAROVSKI, D., Wattens, Tyrol, Austria. March 30, 1932, No. 9179. Convention date, June 9, 1931. [Class 43.] In making jewellery or ornaments comprising stones 2 embedded in a plastic foundation material 7, the stones are set in the foundation simultaneously with the shaping of the foundation from the plastic substance in a mould. The stones may be accommodated in recesses in a lower mould 1 with their outer faces downwards such that the largest edges 3 of the stones are disposed above the edges 4 of the recesses. The upper mould 5 may carry a fastening 6 with portions projecting from the latter to be embedded in the plastic material. The stones are thus securely fixed in the finished ornament, Fig. 3. The lower mould may have prominences enclosing hollows coaxial with the stones such that each stone is disposed in relief above the plane of the ornament and the edge 3 is retained by an annular bead of the plastic material. Buttons containing stones may similarly be made, eyes or other fastenings being embedded in the foundation or holes being formed by dies. Threads and fine wires may be laid in the moulds for network arrangements. The threads may be deeply embedded or a flexible structure may be formed by a shallow lower mould and an upper mould formed with arched hollows. The stones may be arranged in depressions in the upper mould, being retained therein by suction channels and finally pressed down into the foundation. Celluloid, rubber, synthetic resin, artificial horn or other plastic material may be used. Tinted foundation material may be used, or the surface of the foundation material may be subsequently coloured or metallically coated.
Patent GB-1433102-A (GB)
Title: Photographic mateiral containing an oxonol dye
IPC: G03C1/83
Filed: 1974-02-28
Abstract: 1433102 Photographic materials FUJI PHOTO FILM CO Ltd 28 Feb 1974 [28 Feb 1973] 9195/74 Heading G2C Photographic materials comprise a support bearing a silver halide emulsion layer and at least one layer containing a dye of Formula:- (in which R<SP>1</SP> is optionally substituted alkyl or aryl; R<SP>2</SP> is alkyl substituted by a sulphor or carboxyl group in free or salt form; n is 0-2; the methine chain may be substituted by an alkyl or aryl group. The dyes are the subject-matter of Specification 1413560 and may be used in silver halide emulsion layers as anti-irradiation dyes or in anti-halation or filter layers.
Patent GB-1142157-A (GB)
Title: Improvements in or relating to reversing cocks for distributing water
IPC: E03C1/04
Filed: 1966-03-02
Abstract: 1,142,157. Valves. Y. CHAPOU. 2 March, 1966 [9 March, 1965], No. 9209/66. Heading F2V. [Also in Division A4] A tap comprises a main valve member 3, a main outlet 8 and an alternative outlet 9 to a shower. The main outlet 8 is provided with an auxiliary valve 11 (Figs. 2, 3, not shown) carried by a spindle 16 slidable in a sleeve (17) carried by a seat member 10 The lower end of the spindle is connected to a guide 22 and a spring (19) biases the valve 11 away from its seat (12) at the top of member 10. When the valve 11 is seated by pulling guide 22 down, it remains seated under the water pressure and flow is diverted to the shower via check valve 28. As shown, valve 11 is guided with clearance during its travel in a chamber 27, such an arrangement serving to prevent too rapid closure of the valve.
Patent GB-107595-A (GB)
Title: Improvements in or relating to Rotary Pumps or Engines.
IPC: F01B3/00
Filed: 1917-06-28
Abstract: 107,595. Ludwigsbergs Werkstads Aktiebolag. June 17, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Cam-actuated pumps; revolving-cylinder pumps -In rotary pumps of the kind in which a number of pistons movable axially in a rotary drum are actuated by a guided disk which has an oblique position in relation to the drum and is rotated thereby, the disk g is connected to the pistons c by pins e slidably engaging bores in cylindrical pins d rotatably and longitudinally movable in transverse boxes in the pistons. The pins e may have a sliding connexion with the disk. The invention is applicable also to rotary engines of the same type.
Patent GB-512260-A (GB)
Title: Improvements relating to showcases
IPC: A47F7/24
Filed: 1938-03-26
Abstract: 512,260. Garment racks. GRANT, ' C. M. March 26, 1938, No. 9364. [Class 52 (v)] A tubular garment rail 5 fixed between opposite walls of a cabinet houses at one or both ends a telescopic extension 6 which can be drawn out to provide an external garment-supporting. fitting.
Patent GB-347833-A (GB)
Title: Portable electric lamp
IPC: F21L4/00
Filed: 1930-03-24
Abstract: 347,833. Electric battery lamps. KREMENEZKY, J., 57, Dresdnerstrasse, and BLITZ, K., 8, Heinestrasse, both in Vienna. March 24, 1930, No. 9379. Convention date, April 3, 1929. [Class 39 (ii).] In a battery lamp of the type in which the bulb-holder b is directly attached to the battery a, the bulb i is secured by a rubber sleeve c, which is slipped over the holder and holds the screw threads of the bulb and of the holder elastically in contact, thus permitting the bulb to be rotatably adjusted to obtain a permanent or an instantaneous connection between the central contacts h, e of the bulb and of the holder. The lower portions of the holder and of the sleeve are embedded in the battery cement. The Specification as open to inspection under Sect. 91 (3) (a) states also that in place of the rubber sleeve there may be used a coiled or plate spring or a rubber ring situated at the top or at the bottom of the holder and between the holder and the bulb, Fig. 3 (Cancelled), not shown, and that elastic tongues may be provided on the bulb or holder. This subject-matter does not appear in the Specification as accepted.
Patent GB-856136-A (GB)
Title: Torque limiting wrenches
Inventor: ELLSEY NORMAN HAROLD
IPC: B25B23/142
Filed: 1956-03-26
Abstract: 856,136. Wrenches. M.H.H. ENGINEERING CO. Ltd. March 25, 1957 [March 26, 1956], No. 9381/56. Class 61. An adjustable torque limiting wrench comprises an outer casing C, a cylindrical housing 2 rotatably mounted within the casing and having an adaptor head A and a driving ball clutch consisting of a ball 14 urged by a spring 12 into direct engagement with a series of clutch balls 15 carried in radial slots 16 in the housing and resiliently urged by the ball 14 into driving engagement with cam grooves on the inside of a collar fast with the casing C. When torque below a predetermined value is applied the balls 15 remain partly in the slots 16 and partly in the cam grooves 21, but when the torque exceeds that value the balls move out of the cam grooves and into the slots. The grooves 21 having a steep angle on the driving side and a gradual slope on the other side to give a ratchet effect. The load on the spring 12 is adjustable by the screw plug 17. The collar 5 has a flange 6 by which it is secured to the casing by a screw cap 7. In a modification the casing is fitted with a.lining sleeve, the collar being a press fit on the end of the sleeve. In place of sockets for a tommy bar, serrations to give a good grip are formed on the casing. Specification 674,352 is referred to.
Patent GB-1399775-A (GB)
Title: Winding machine for producing coil springs
IPC: B21F23/00
Filed: 1973-02-27
Abstract: 1399775 Coiling springs J W G HUHNEN 27 Feb 1973 [28 Feb 1972] 9497/73 Heading B3E In a coil spring winding machine, a pair of feed rollers grip the feed wire and can be rotated about the axis of the wire in the region of the rollers so as to twist the wire. The amount of twist may be such that plastic deformation of the wire in torsion does not occur prior to winding the spring. Fig. 1 shows a twisting head comprising feed rollers 100 driven by gears 104, 101, shaft 108, and gear 102, the rollers 100 being mounted in a drum 107 rotatable on shaft 108 and a wire guide 105 by integral gear 103. That portion of wire 103 between the rollers and the coil forming abutments 106 can be twisted as desired by suitably arranging the relative drive speeds of gears 102, 103. To enable a continuous length of wire to be fed, the supply arrangement of Fig. 2 may be used. A coil 47 of wire is located on fingers 49 on a table 48 rotatably mounted on a platform 52 and driven by motor 50. A device 51 continuously ensures dynamic balance of the table and coil. The platform is supported in sprung manner on a fixed pin 55. The wire passes through a guide loop 57 and between gripping rollers 58 mounted in a drum 59 rotatable by motor 16. The rate of twist generated by rollers 100 equals that of rollers 58, and equals that generated by the turns coming off coil 47 plus the rate of rotation of table 48, so that between the coil 47 and rollers 58, and between rollers 58 and rollers 100, the wire is rotated but not twisted. A flying shear is used to sever the wire between formation of successive coils. In an alternative, a flying shear is not used, and the head of Fig. 1 is stopped between formation of successive coils. In this case, the source of Fig. 2 is far enough from the head of Fig. 1 that the twist generated by the source during stoppage of the head can be stored in the wire without plastic deformation, this stored twist being just dissipated during the next operating cycle of the head.
Patent GB-314567-A (GB)
Title: Improvements relating to electric heating devices
IPC: F24C7/06
Filed: 1928-03-29
Abstract: 314,567. Dornan, J. March 29, 1928. Electric radiators. - A heating and lighting unit adapted to be supported from a wall or ceiling comprises a heating device consisting of a resistance w i r e carried by an insulating former, a reflector, and one or more electric incandescent lamp sockets disposed outside the reflector. A part or the whole of the beating device constitutes a permanent fixed part of the unit. In Fig. 1 the heating device 2 is arranged in an inverted bowl reflector 1 separated by insulation 6 from an outer bowl 5. A surrounding shroud 10 carries lamp sockets 3. Air passes upwards between the shroud and bowl and through perforations 9 at the top of the former. In Fig. 2 the heating device is arranged centrally of a reflector carrying lamp sockets on its periphery. An auxiliary reflector 1 and a guard 14 are arranged below the heating device. The heating and lighting circuits are controlled by separate switches. Modifications referred to comprise concentric heating and lighting devices and heating devices grouped about a central lighting device.
Patent GB-594325-A (GB)
Title: Manufacture of polyazo-dyestuffs capable of being coppered
IPC: C09B35/00
Filed: 1945-04-17
Abstract: Polyazo-dyestuffs capable of being coppered are made by tetrazotizing 4,41-diamino-2,21,5,51 tetra-alkoxydiphenyl urea (in which the alkoxy groups may contain substituents) and coupling with one mol. of 1-amino-8-oxynaphthalene-2,4-disulphonic acid and one mol. of a hydroxylated component capable of coupling in ortho-position to a hydroxyl group.  The second component may be identical with the first.  A list of suitable hydroxylated coupling components is given. In a modification, a 41-amino-21,51-dialkoxyphenyl-11, 7-azo-1-amino - 8 - oxynaphthalene - 2,4 - disulphonic acid is reacted with phosgene to form a symmetrical disazo-dyestuff.  The dyestuffs dye natural and regenerated cellulose pure blue tints and may be improved by coppering in substance or on the fibre.  In examples: (1) 4,41-diamino-2,21,5,51-tetramethoxydiphenyl urea or 4,41-diamino-2,21-dimethoxy-5,51-di-(oxyethoxy) -diphenyl urea is tetrazotized and coupled first with 1 mol. each of 1-amino-8-oxynaphthalene-2,4-disulphonic acid and then with 2-oxynaphthalene-6-sulphonic acid; (2) the intermediate obtained as in (1) from tetrazotized 4,41-diamino-2,21,5,51-tetramethoxy-diphenyl urea and 1-amino-8-oxynaphthalene-2,4-disulphonic acid is coupled with 1,3-dioxybenzene; (3) 4,41-diamino-2,21,5,51-tetramethoxy-diphenyl urea is tetrazotized and coupled with 2 mols. of 1 - amino - 8 - oxynaphthalene - 2,4 - disulphonic acid-the same dyestuff is also obtained by treating with phosgene the aminoazo dyestuff made by de-acetylating 4-acetylamino-2,5-dimethoxy - 1 - aminobenzene --> 1 - amino - 8 - oxynaphthalene - 2,4 - disulphonic acid-and the dyestuff may then be coppered by boiling it with copper sulphate in aqueous solution and precipitating with sodium chloride; (4) 4,41-diamino-2,21,5,51-tetramethoxy-diphenyl urea is tetrazotized and coupled on one side with the dyestuff 2-aminobenzoic acid --> 2-amino-5-oxynaphthalene-7-sulphonic acid, and coupling is completed by adding 1-amino-8-oxynaphthalene-2,4-disulphonic acid.  A table is given of a number of other dyestuffs which can be made by the process of the invention.  4,41-Diamino-2,21,5,51-tetra-alkoxydiphenylurea is made by reacting phosgene with 4-nitro-2,5-dialkoxy-1-aminobenzene or 4-acylamino- or 4-sulphamino-2,5-dialkoxy-1-aminobenzene' followed by reducing the nitro group or hydrolysing the acylamino or sulphamino groups.